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arXiv 1809.05979cs.RO
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基于卫星影像的UAV位姿估计

UAV Pose Estimation using Cross-view Geolocalization with Satellite Imagery

University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校)

Akshay Shetty, Grace Xingxin Gao

摘要:

我们提出了一种基于图像的跨视图地理定位方法,估计的全球姿态的无人机与地理参考卫星图像的帮助。我们的方法由两个连体神经网络,提取相关的功能,尽管在观点上有很大的差异。我们的方法的输入是空中无人机图像和附近的卫星图像,输出是无人机相机的加权全局位姿估计。我们还提出了一个框架,通过卡尔曼滤波器将我们的跨视图地理定位输出与视觉里程计相结合。我们建立了一个模拟无人机图像和卫星图像的数据集来训练和测试我们的网络。我们证明了我们的方法比以前的相机姿态估计方法表现得更好,并且我们证明了我们的网络能够很好地推广到测试包含未见过图像的数据集。最后,我们表明,结合我们的方法与视觉里程计显着减少轨迹估计误差。

英文摘要:

We propose an image-based cross-view geolocalization method that estimates the global pose of a UAV with the aid of georeferenced satellite imagery. Our method consists of two Siamese neural networks that extract relevant features despite large differences in viewpoints. The input to our method is an aerial UAV image and nearby satellite images, and the output is the weighted global pose estimate of the UAV camera. We also present a framework to integrate our cross-view geolocalization output with visual odometry through a Kalman filter. We build a dataset of simulated UAV images and satellite imagery to train and test our networks. We show that our method performs better than previous camera pose estimation methods, and we demonstrate our networks ability to generalize well to test datasets with unseen images. Finally, we show that integrating our method with visual odometry significantly reduces trajectory estimation errors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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